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Garmin Varia RearVue 820 Tail Light
Garmin Varia RearVue 820 Tail Light
Garmin Varia RearVue 820 Tail Light
Garmin Varia RearVue 820 Tail Light
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Garmin Varia RearVue 820 Tail Light 1
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Garmin Varia RearVue 820 Tail Light

(8)

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Mfg PartNum: 010-03180-00
$299.99
MSRP: $299.99
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Description

Strikingly Visible. Remarkably Powerful

The Garmin Varia RearVue 820 features their most powerful and precise radar yet with a wider field of view, giving you more reliable alerts than ever before. The tail light offers up to 2 km (1.24 miles) of visibility and features a brake light that shows when you're slowing or stopping.

Features:

  • Powerful And Reliable Radar - With Garmin's powerful and precise radar tracking technology, Varia RearVue 820 radar detects vehicles approaching from up to 175 meters (more than 190 yards) away with a wider field of view.
  • Bright Tail Light And Brake Light - Their brightest tail light yet means you'll be visible from up to 2 km (1.24 miles) away. A brake light detects when you're slowing or stopping and displays a unique flash pattern.
  • Advanced Vehicle Tracking - See alerts for small, medium and large vehicles, and see when a vehicle changes lanes, along with its threat level, when riding with the latest compatible Edge® cycling computers or the Varia™ app on your smartphone.
  • Get Alerts Your Way - For visual and audible alerts while you ride, connect this radar to the Varia smartphone app, compatible Edge cycling computers or Garmin smartwatches. In addition to haptic alerts on your wrist, select Garmin smartwatches can also give voice alerts for approaching vehicles (currently available in the Garmin Public Beta program for select smartwatches.)
  • Variety Of Light Pattern Options - Ride with four different light patterns: day flash, night flash, solid mode and peloton mode, which helps preserve the eyes of riders behind you. Create your own custom light patterns in the Varia app on your smartphone.
  • Compact Design - A sleek, compact design and new seatpost mount means Varia RearVue 820 fits cleanly onto almost any road or gravel bicycle and is compatible with the Varia seat rail mount kit (sold separately).

Specs:

  • Dimensions: 3.9" x 1.0" x 1.7" (98.9 x 25.9 x 43.2 mm)
  • Weight: 3.2 oz (90 g)
  • Light Modes: solid, peloton, night flash, day flash
  • Custom Light Mode Configuration: Yes (with Varia Mobile App)
  • Radar-Only Mode: Yes
  • Lumens: 25 solid, 8 peloton, 40 night flash, 100 day flash
  • Battery Life: 10 hours solid; 15 hours peloton; 10 hours night flash; 24 hours day flash; 30 hours radar-only
  • Water Rating: IPX7
  • ANT+®: Yes (radar, bike lights)
  • BLE: Yes (radar, bike lights)
  • Viewing Angle: 220°
  • Radar Beam Width: 60°
  • Visibility Distance: 1.24 mi (2 km)
  • Maximum Vehicle Detection Range: 175 m

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

Specifications

Mfg PartNum: 010-03180-00 

Reviews

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Reviewed 3/13/2026
by s2s Wisconsin
Southern Wisconsin
Value Rating
Overall Rating
10 of 10 customers found this review helpful.
Getting better and better-USB-C FINALLY

Midwest weather had a freak warm day last week (72 degrees in March!) so we ventured a short leg-stretching ride. This Varia 820 is an upgrade for me from the 515, and it IS as-advertised. I use it with an Edge 1040 and the new vehicle icons and wider display are far more useful, particularly in the kind of riding I do... out in the country, where a car/pickup can sneak up on you really really fast. The ONLY complaint I have so far has to do with the same, ongoing problem: the volume of the notification chime. Windy rides, at pace, you just can't hear the notification. You just have to get into the habit of the quick glance as part of your awareness "rotation." These will be gifts for my grandson and his father as well.

See the online YouTube reviews from Llama and DM for really good tech evaluations.

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Reviewed 6/1/2026
by Paco
Central Indiana
Overall Rating
Best Cycling Accessory purchased for several years

The Varia 820 has made my riding so much more relaxing by not having to continually look over my shoulder for trailing vehicles.

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Reviewed 5/14/2026
by Eric
Cycling Enthusiast
northern Maine
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
awesome product delivering peace of mind

Country road cycling, hills and curves. This Garmin product gives me peace of mind, identifying trucks and cars approaching from behind from a long distance away, allowing me to prepare ahead of time. The radar has not given me any false warnings for me so far. Love knowing the situation as other cars approach from the front in no passing zones. Well worth the price in my opinion.

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Reviewed 5/4/2026
by Anonymous
Competitive Racer
Los Angeles
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Excellent Upgrade

Upgrading to the 820 it performs as advertised. Coverage is excellent and it does a fantastic job of letting you know when a car is traveling at the same speed as you (biggest upgrade I can tell). It does still have a tendency to see other bikes behind you as traffic which can be annoying in group rides. Battery life is much improved and moving to USB C makes traveling so much easier. No bunches of different cables needed.

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Reviewed 4/27/2026
by Paul
Boise Idaho
Overall Rating
1 of 2 customers found this review helpful.
Better but still has quirks.

New 820 does identify an increase in size of larger vehicles like trucks, but still doesn't distinguish other upcoming cyclists or show a difference between cars and motorcycles. Also the rear holder is cheap plastic that has already needed to be re glued after 1 week of use. Come on Garmin put a stronger metal mount so we don't loose our new expensive radar.

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Reviewed 5/21/2026
by Aggie
Cycling Enthusiast
So. CA
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Excellent rear radar

Bought this to replace the prior unit. It has a better battery life, picks up vehicles further away and the two lane display is a plus.

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Reviewed 4/10/2026
by Mike
Cycling Enthusiast
Olympic peninsula
Value Rating
Overall Rating
2 of 2 customers found this review helpful.
Lets me know what is behind

I decided that I wanted to try a rear light radar system that would appear on my head unit. I wasn't sure if it would be useful or just annoying. After a few rides I put it in the useful category. I don't use the warning tone. But I have fellow rider that does. It is nice to be able to adjust the light brightness and even turn it off. I wish that it was a little clearer on the battery percentage.

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Reviewed 4/3/2026
by Anonymous
Cycling Enthusiast
Sheboygan, WI
Value Rating
Overall Rating
4 of 4 customers found this review helpful.
Excellent ride security

More sensitive and visible than the past generation

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